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United States Patent | 5,718,825 |
Greive ,   et al. | February 17, 1998 |
A liquid filter, such as an oil or gas filter, is provided which has a cup-shaped cylindrical filter housing to be mounted in a vertical orientation, with a releasable cover closing the filter housing. A liquid inlet passage and a liquid outlet passage are provided at the housing. A replaceable, substantially hollow cylindrical filter insert is vertically arranged in the housing. The filter insert being formed of a filter material member arranged between an upper and a lower disc. A collar, which is impervious to solid contaminants removed by the filter material member, extends from the lower disc upwardly along a part of the height of the filter insert, surrounding an outer circumference of the filter insert member. In this manner a collection chamber is formed for the filtered solid particles at the lower disc.
Inventors: | Greive; Michael (Muenster, DE); Ardes; Wilhelm (Ascheberg, DE) |
Assignee: | Ing. Walter Hengst Gmbh & Co. KG (Muenster, DE) |
Appl. No.: | 568635 |
Filed: | December 7, 1995 |
Dec 09, 1994[DE] | 44 43 581.9 |
Current U.S. Class: | 210/298; 210/299; 210/435; 210/484; 210/493.2 |
Intern'l Class: | B01D 035/16 |
Field of Search: | 210/299,407,435,484,315,450,248,298,305,440,455,493.2,523 55/295,296,300,433 |
3000506 | Sep., 1961 | Hultgren | 210/DIG. |
3054507 | Sep., 1962 | Humbert, Jr. et al. | 210/440. |
3224583 | Dec., 1965 | Rosaen | 210/315. |
3288291 | Nov., 1966 | Rosaen | 210/248. |
3397786 | Aug., 1968 | Hultgren | 210/440. |
3561604 | Feb., 1971 | Yotsumoto | 210/484. |
4108775 | Aug., 1978 | Wilkes et al. | 210/299. |
5085769 | Feb., 1992 | Klausen et al. | 210/299. |
Foreign Patent Documents | |||
1177350 | Apr., 1959 | FR | 210/484. |
2226254 | Jun., 1990 | GB | 210/450. |